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RHEM Light Indicators

Now in Booklet Form!

Visual Indication of correct lighting conditions

People involved in colour management know the importance of viewing proofs, prints and originals under controlled lighting, normally a viewing booth with D50 or 5000K lights. By attaching a RHEM strip to your documents, the person viewing can easily see whether they are working in good or bad lighting and take some action.

The PIA/GATF RHEM® Light Indicator (Formerly Item No. 7065R) is a device for the visual control of color viewing. When attached to the border of a color proof or transparency, the Light Indicator will signal whether the viewer is judging color accuracy with or without a 5,000 K standard light source. Under standard lighting, the Light Indicator appears as a solid magenta patch. However, under non-standard light sources, the broad stripes of the two magenta metameric colorants that comprise the Indicator are readily apparent. The small patches, backed with a nonpermanent adhesive, can be peeled off and attached to the border of color proofs, color copy, color reproductions, or the sleeve of a transparency. Each patch measures 2x0.75-in. (51x19 mm).

NOTE: The PIA/GATF RHEM® Light Indicators are sold in booklets of 50 stickers.